H2O + L-glutamate + NAD(+) = 2-oxoglutarate + H(+) + NADH + NH4(+) H2O + L-glutamate + NADP(+) = 2-oxoglutarate + H(+) + NADPH + NH4(+) Barely expressed in leaves, spikelets and roots (PubMed:16120687). Glumes and stamens specific accumulation (PubMed:19430792). Induced in shoots and roots after nitrogen (N-deprivation) and phosphorus (P-deprivation) deprivations (PubMed:19430792). Induced by alkali stress (PubMed:22655071). Up-regulated by salt stress in old leaves (PubMed:23082824). Belongs to the Glu/Leu/Phe/Val dehydrogenases family.