Enables cell adhesion molecule binding activity; toxic substance binding activity; and transmembrane signaling receptor activity. Involved in several processes, including calcium-mediated signaling using intracellular calcium source; heterophilic cell-cell adhesion via plasma membrane cell adhesion molecules; and positive regulation of synapse maturation. Located in growth cone; postsynaptic density; and presynaptic membrane. Is active in glutamatergic synapse. Is integral component of presynaptic membrane. Orthologous to human ADGRL1 (adhesion G protein-coupled receptor L1). [provided by Alliance of Genome Resources, Apr 2022]