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