glyceraldehyde-3-phosphate dehydrogenase [NAD(P)+] (non-phosphorylating) activity
glyceraldehyde-3-phosphate dehydrogenase [nad(p)+] (non-phosphorylating) activity
Catalysis of the reaction: D-glyceraldehyde 3-phosphate + NAD(P)+ + H2O = (2R)-3-phosphoglycerate + NAD(P)H + 2 H+.