5alpha-pregnan-20beta-ol-3-one + NAD(+) <=> 5alpha-pregnane-3,20-dione + NADH + H(+)
5alpha-pregnan-20beta-ol-3-one + nad(+) <=> 5alpha-pregnane-3,20-dione + nadh + h(+)
5alpha-pregnan-20beta-ol-3-one + NAD(+) <=> 5alpha-pregnane-3,20-dione + NADH + H(+)
5alpha-pregnan-20beta-ol-3-one + nad(+) <=> 5alpha-pregnane-3,20-dione + nadh + h(+)