obsolete cytochrome P450 dependent 12,13beta-epoxy-beta-amyrin hydroxylase activity (obsolete GO:0102600)
OBSOLETE. Catalysis of the reaction: 12,13beta-epoxy-beta-amyrin + O2 + H+ + NAD(P)H = 12,13beta-epoxy-16beta-hydroxy-beta-amyrin + H2O + NAD(P).