obsolete 7-alpha-hydroxycholest-4-en-3-one 12-alpha-hydroxylase activity (obsolete GO:0033778)
OBSOLETE. Catalysis of the reaction: 7alpha-hydroxycholest-4-en-3-one + H+ + NADPH + O2 = 7alpha,12alpha-dihydroxycholest-4-en-3-one + H2O + NADP+.