Predicted to enable amino acid binding activity and dimethylargininase activity. Predicted to be involved in arginine metabolic process; citrulline metabolic process; and positive regulation of nitric oxide biosynthetic process. Predicted to act upstream of or within arginine catabolic process. Predicted to be located in mitochondrion. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; heart; and sensory organ. Orthologous to human DDAH2 (dimethylarginine dimethylaminohydrolase 2). [provided by Alliance of Genome Resources, Apr 2022]