Predicted to enable cell adhesion molecule binding activity; toxic substance binding activity; and transmembrane signaling receptor activity. Acts upstream of or within positive regulation of synapse assembly. Predicted to be located in growth cone; plasma membrane; and synapse. Predicted to be active in axon; postsynaptic density; and presynaptic membrane. Predicted to be integral component of plasma membrane. Is expressed in central nervous system and retina. Orthologous to human ADGRL1 (adhesion G protein-coupled receptor L1). [provided by Alliance of Genome Resources, Apr 2022]