Predicted to be involved in presynapse assembly. Predicted to act upstream of or within positive regulation of amyloid-beta formation and positive regulation of synapse assembly. Predicted to be integral component of membrane. Predicted to be active in extracellular matrix; extracellular space; and glutamatergic synapse. Predicted to be integral component of postsynaptic density membrane. Orthologous to human LRRTM3 (leucine rich repeat transmembrane neuronal 3). [provided by Alliance of Genome Resources, Apr 2022]