3-oxo-5beta-cholan-24-oate + NADH + H(+) <=> isolithocholate + NAD(+)
3-oxo-5beta-cholan-24-oate + nadh + h(+) <=> isolithocholate + nad(+)
3-oxo-5beta-cholan-24-oate + NADH + H(+) <=> isolithocholate + NAD(+)
3-oxo-5beta-cholan-24-oate + nadh + h(+) <=> isolithocholate + nad(+)