15-oxo-(5S,6R)-dihydroxy-(7E,9E,11Z,13E)-eicosatetraenoate + NADH + H(+) <=> 15-oxo-(5S,6R)-dihydroxy-(7E,9E,11Z)-eicosatrienoate + NAD(+)
15-oxo-(5s,6r)-dihydroxy-(7e,9e,11z,13e)-eicosatetraenoate + nadh + h(+) <=> 15-oxo-(5s,6r)-dihydroxy-(7e,9e,11z)-eicosatrienoate + nad(+)