Enables several functions, including glycosaminoglycan binding activity; growth factor activity; and syndecan binding activity. Involved in several processes, including animal organ development; nervous system development; and regulation of epithelial cell proliferation. Located in several cellular components, including basement membrane; neuromuscular junction; and perinuclear region of cytoplasm. Is active in postsynapse and presynapse. Used to study Parkinson's disease. Biomarker of several diseases, including extrahepatic cholestasis; liver cirrhosis; sciatic neuropathy; transient cerebral ischemia; and visual epilepsy. Human ortholog(s) of this gene implicated in adrenal carcinoma. Orthologous to human PTN (pleiotrophin). [provided by Alliance of Genome Resources, Apr 2022]