Reaction catalyzed by alcohol dehydrogenase (1.1.1.1), 3beta-hydroxy-DELTA5-steroid dehydrogenase (1.1.1.145)

		+		NAD+	=			+		NADH
	5alpha-pregnan-3beta-ol-20-one	+		NAD+	=		5alpha-pregnan-3,20-dione	+		NADH