Predicted to enable S-methyl-5-thioadenosine phosphorylase activity. Acts upstream of or within methylation. Predicted to be located in nucleoplasm. Predicted to be active in cytosol. Is expressed in several structures, including alimentary system; central nervous system; genitourinary system; integumental system; and sensory organ. Human ortholog(s) of this gene implicated in biliary tract benign neoplasm and diaphyseal medullary stenosis with malignant fibrous histiocytoma. Orthologous to human MTAP (methylthioadenosine phosphorylase). [provided by Alliance of Genome Resources, Apr 2022]