The function of ENSG00000170502 (NUDT9, nudix hydrolase 9) is as follows. Hydrolyzes ADP-ribose (ADPR) to AMP and ribose 5'-phosphate (PubMed:11385575, PubMed:37343711). Has also a weak phosphohydrolase activity against NADH and FAD (in vitro) (PubMed:37343711). .