obsolete sterol-4-alpha-carboxylate 3-dehydrogenase (decarboxylating) activity (obsolete GO:0047012)
OBSOLETE. Catalysis of the reaction: NAD(P)+ + 3-beta-hydroxy-4-alpha-methyl-5-alpha-cholest-7-ene-4-beta-carboxylate = NAD(P)H + H+ + CO2 + 4-alpha-methyl-5-alpha-cholest-7-en-3-one.
3-beta-hydroxy-4-alpha-methylcholestenecarboxylate 3-dehydrogenase (decarboxylating) activity
exact