Where do I find algo.memrec?

This page talks about using algo.memrec to calculate memory requirements, but it doesn't seem to exist on our installation of 3.5.7-enterprise:

Neo.ClientError.Procedure.ProcedureNotFound: There is no procedure with the name `algo.memrec` registered for this database instance. Please ensure you've spelled the procedure name correctly and that the procedure is properly deployed.

Google is failing me. Is this something that was removed?

Have you installed the Graph Algorithms plugin? if so what version? The plugin is typically installed into $NEO4J_HOME/plugins.

Does a call dbms.procedures() yield name where name starts with 'algo' return name; return any results?

Yes, I've installed the Graph Algorithms plugin: v3.5.4.0 (graph-algorithms-algo-3.5.4.0.jar). Here's the output of call dbms.procedures() yield name where name starts with 'algo' return name;:

"algo.allShortestPaths.stream"
"algo.articleRank"
"algo.articleRank.stream"
"algo.asPath"
"algo.balancedTriads"
"algo.balancedTriads.stream"
"algo.betweenness"
"algo.betweenness.sampled"
"algo.betweenness.sampled.stream"
"algo.betweenness.stream"
"algo.bfs.stream"
"algo.closeness"
"algo.closeness.dangalchev"
"algo.closeness.dangalchev.stream"
"algo.closeness.harmonic"
"algo.closeness.harmonic.stream"
"algo.closeness.stream"
"algo.degree"
"algo.degree.stream"
"algo.dfs.stream"
"algo.eigenvector"
"algo.eigenvector.stream"
"algo.graph.info"
"algo.graph.load"
"algo.graph.remove"
"algo.infoMap"
"algo.infoMap.stream"
"algo.kShortestPaths"
"algo.kShortestPaths.stream"
"algo.labelPropagation"
"algo.labelPropagation.stream"
"algo.list"
"algo.louvain"
"algo.louvain.stream"
"algo.mst"
"algo.pageRank"
"algo.pageRank.stream"
"algo.randomWalk.stream"
"algo.scc"
"algo.scc.forwardBackward.stream"
"algo.scc.iterative"
"algo.scc.iterative.stream"
"algo.scc.multistep"
"algo.scc.multistep.stream"
"algo.scc.recursive.tarjan"
"algo.scc.recursive.tunedTarjan"
"algo.scc.recursive.tunedTarjan.stream"
"algo.scc.stream"
"algo.shortestPath"
"algo.shortestPath.astar.stream"
"algo.shortestPath.deltaStepping"
"algo.shortestPath.deltaStepping.stream"
"algo.shortestPath.stream"
"algo.shortestPaths"
"algo.shortestPaths.stream"
"algo.similarity.cosine"
"algo.similarity.cosine.stream"
"algo.similarity.euclidean"
"algo.similarity.euclidean.stream"
"algo.similarity.jaccard"
"algo.similarity.jaccard.stream"
"algo.similarity.overlap"
"algo.similarity.overlap.stream"
"algo.similarity.pearson"
"algo.similarity.pearson.stream"
"algo.spanningTree"
"algo.spanningTree.kmax"
"algo.spanningTree.kmin"
"algo.spanningTree.maximum"
"algo.spanningTree.minimum"
"algo.triangle.stream"
"algo.triangleCount"
"algo.triangleCount.forkJoin"
"algo.triangleCount.forkJoin.stream"
"algo.triangleCount.stream"
"algo.unionFind"
"algo.unionFind.forkJoin"
"algo.unionFind.forkJoin.stream"
"algo.unionFind.forkJoinMerge"
"algo.unionFind.forkJoinMerge.stream"
"algo.unionFind.mscoloring"
"algo.unionFind.mscoloring.stream"
"algo.unionFind.queue"
"algo.unionFind.queue.stream"
"algo.unionFind.stream"

hmm.. yeah with Algo 3.5.0.4 and Neo4j 3.5.5 I'm seeing the same as you.
I have entered Github issue https://github.com/neo4j-contrib/neo4j-graph-algorithms/issues/905

@bgreenlee please download and use http://s3-eu-west-1.amazonaws.com/com.neo4j.graphalgorithms.dist/neo4j-graph-algorithms-3.5.7.0-standalone.jar

Algo 3.5.7.0 should be available for direct download within Neo4j Desktop but if you are downloading https://github.com/neo4j-contrib/neo4j-graph-algorithms/releases it is not currently listed here. Please download from the link above and let me know if this is now resolved

So 3.5.7.0 fixed the missing memrec issue, but brought on other problems. See https://github.com/neo4j-contrib/neo4j-graph-algorithms/issues/908