Enables amidophosphoribosyltransferase activity and identical protein binding activity. Involved in several processes, including animal organ development; cellular response to insulin stimulus; and glutamine catabolic process. Biomarker of hepatocellular carcinoma and renal cell carcinoma. Orthologous to human PPAT (phosphoribosyl pyrophosphate amidotransferase). [provided by Alliance of Genome Resources, Apr 2022]