(S)-2,3,4,5-tetrahydrodipicolinate + NAD(+) + H2O = (2S,4S)-4-hydroxy-2,3,4,5-tetrahydrodipicolinate + NADH + H(+)
(s)-2,3,4,5-tetrahydrodipicolinate + nad(+) + h2o = (2s,4s)-4-hydroxy-2,3,4,5-tetrahydrodipicolinate + nadh + h(+)