Predicted to enable NAD+ ADP-ribosyltransferase activity and NAD+ nucleosidase activity. Predicted to be involved in peptidyl-arginine ADP-ribosylation. Predicted to act upstream of or within protein ADP-ribosylation. Predicted to be located in extracellular region and membrane. Orthologous to human ART5 (ADP-ribosyltransferase 5). [provided by Alliance of Genome Resources, Apr 2022]