Acts upstream of or within several processes, including long-term synaptic potentiation; negative regulation of receptor internalization; and positive regulation of synapse assembly. Predicted to be located in endoplasmic reticulum; excitatory synapse; and growth cone. Predicted to be integral component of membrane. Predicted to be active in GABA-ergic synapse; extracellular matrix; and extracellular space. Predicted to be integral component of postsynaptic specialization membrane. Is expressed in several structures, including central nervous system; future brain; limb; peripheral nervous system; and sensory organ. Used to study schizophrenia. Orthologous to human LRRTM1 (leucine rich repeat transmembrane neuronal 1). [provided by Alliance of Genome Resources, Apr 2022]