Glyceraldehyde-3-Phosphate Dehydrogenase (NADP+) (Phosphorylating) Activity
Glyceraldehyde Phosphate Dehydrogenase (Nicotinamide Adenine Dinucleotide Phosphate) (Phosphorylating)
Catalysis of the reaction: phosphate + NADP+ + glyceraldehyde-3-phosphate = NADPH + 3-phospho-D-glyceroyl-phosphate.