. "Catalysis of the reaction: (S)-2,3-epoxysqualene = cycloartenol." . . "cycloartenol synthase activity" . "(S)-2,3-epoxysqualene mutase (cyclizing, cycloartenol-forming)" . "2,3-epoxysqualene cycloartenol-cyclase activity" . "2,3-epoxysqualene--cycloartenol cyclase activity" . "2,3-oxidosqualene-cycloartenol cyclase activity" . "oxidosqualene:cycloartenol cyclase activity" . "squalene-2,3-epoxide-cycloartenol cyclase activity" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .