Enables calcium ion binding activity. Involved in several processes, including locomotion involved in locomotory behavior; nervous system development; and response to cocaine. Acts upstream of or within positive regulation of synapse assembly. Located in axon and cell-cell junction. Is integral component of plasma membrane. Is active in glutamatergic synapse. Is expressed in ductus deferens; epididymis; esophagus; and ileum. Used to study attention deficit hyperactivity disorder. Orthologous to human ADGRL3 (adhesion G protein-coupled receptor L3). [provided by Alliance of Genome Resources, Apr 2022]