Enables GPI-linked ephrin receptor activity. Involved in several processes, including cellular response to retinoic acid; generation of neurons; and regulation of synapse assembly. Located in cytoplasm and plasma membrane. Is active in glutamatergic synapse. Is integral component of postsynaptic membrane. Human ortholog(s) of this gene implicated in adenoid cystic carcinoma; colorectal cancer; and stomach cancer. Orthologous to human NTRK3 (neurotrophic receptor tyrosine kinase 3). [provided by Alliance of Genome Resources, Apr 2022]