http://linkedlifedata.com/r... | skos:definition | "Catalysis of the reaction: (S)-2,3-epoxysqualene = beta-amyrin. This reaction is the cyclization and rearrangement of (S)-2,3-epoxysqualene (2,3-oxidosqualene) into beta-amyrin." [PMID:9746369] | lld:geneontology |