Predicted to enable protein phosphatase inhibitor activity. Involved in synapse organization. Located in dendrite and excitatory synapse. Is expressed in several structures, including adrenal gland; eye; gut; male reproductive gland or organ; and nervous system. Orthologous to human ELFN1 (extracellular leucine rich repeat and fibronectin type III domain containing 1). [provided by Alliance of Genome Resources, Apr 2022]