Enables several functions, including amino-acid racemase activity; anion binding activity; and identical protein binding activity. Acts upstream of or within D-serine biosynthetic process and L-serine metabolic process. Predicted to be located in apical part of cell; neuronal cell body; and plasma membrane. Predicted to be active in cytoplasm. Is expressed in facial bone primordium and nervous system. Used to study schizophrenia. Orthologous to human SRR (serine racemase). [provided by Alliance of Genome Resources, Apr 2022]