Enables aspartate carbamoyltransferase activity; carbamoyl-phosphate synthase (glutamine-hydrolyzing) activity; and dihydroorotase activity. Involved in 'de novo' UMP biosynthetic process. Predicted to be located in nuclear matrix and nucleoplasm. Predicted to be active in cytosol. Is expressed in several structures, including alimentary system; brain; branchial arch; genitourinary system; and sensory organ. Human ortholog(s) of this gene implicated in developmental and epileptic encephalopathy 50. Orthologous to human CAD (carbamoyl-phosphate synthetase 2, aspartate transcarbamylase, and dihydroorotase). [provided by Alliance of Genome Resources, Apr 2022]