Predicted to enable phosphoglycerate dehydrogenase activity. Predicted to act upstream of or within L-serine biosynthetic process. Is expressed in annular ligament. Human ortholog(s) of this gene implicated in Neu-Laxova syndrome 1; PHGDH deficiency; and amino acid metabolic disorder. Orthologous to human PHGDH (phosphoglycerate dehydrogenase).