Predicted to enable calcium ion binding activity and transmembrane receptor protein tyrosine kinase activity. Involved in several processes, including innervation; positive regulation of neuron maturation; and retina development in camera-type eye. Located in several cellular components, including early endosome; membrane raft; and neuronal cell body. Biomarker of Parkinsonism; brain ischemia; and pheochromocytoma. Human ortholog(s) of this gene implicated in Hirschsprung's disease; familial medullary thyroid carcinoma; multiple endocrine neoplasia type 2A; multiple endocrine neoplasia type 2B; and pheochromocytoma. Orthologous to human RET (ret proto-oncogene). [provided by Alliance of Genome Resources, Apr 2022]