PARP15 (Poly(ADP-Ribose) Polymerase Family Member 15) is a Protein Coding gene. GO annotations related to this gene include NAD+ ADP-ribosyltransferase activity. An important paralog of this gene is PARP14. Poly (ADP-ribose) polymerase (PARP) catalyzes the post-translational modification of proteins by the addition of multiple ADP-ribose moieties. PARP transfers ADP-ribose from nicotinamide dinucleotide (NAD) to Glu/Asp residues on the substrate protein.