Predicted to enable ATP binding activity and ribose phosphate diphosphokinase activity. Predicted to be involved in 5-phosphoribose 1-diphosphate biosynthetic process and purine nucleotide biosynthetic process. Predicted to be part of ribose phosphate diphosphokinase complex. Predicted to be active in cytoplasm. Orthologous to human PRPS1L1 (phosphoribosyl pyrophosphate synthetase 1 like 1). [provided by Alliance of Genome Resources, Apr 2022]