Reaction catalyzed by alcohol dehydrogenase (1.1.1.1), 3alpha(17beta)-hydroxysteroid dehydrogenase (NAD+) (1.1.1.239)

		+		NAD+	=			+		NADH
	5beta-androstan-17beta-ol-3-one	+		NAD+	=		5beta-androstan-3,17-dione	+		NADH