Predicted to enable identical protein binding activity; phosphoribosylaminoimidazole carboxylase activity; and phosphoribosylaminoimidazolesuccinocarboxamide synthase activity. Predicted to be involved in purine ribonucleoside monophosphate biosynthetic process. Predicted to act upstream of or within purine nucleotide biosynthetic process. Predicted to be located in cytoplasm. Predicted to be active in cytosol. Is expressed in several structures, including alimentary system; genitourinary system; nervous system; respiratory system; and sensory organ. Human ortholog(s) of this gene implicated in schizophrenia. Orthologous to human PAICS (phosphoribosylaminoimidazole carboxylase and phosphoribosylaminoimidazolesuccinocarboxamide synthase). [provided by Alliance of Genome Resources, Apr 2022]