The function of Ensembl gene identifier ENSG00000146006 (LRRTM2, leucine rich repeat transmembrane neuronal 2) is as follows. Involved in the development and maintenance of excitatory synapses in the vertebrate nervous system. Regulates surface expression of AMPA receptors and instructs the development of functional glutamate release sites. Acts as a ligand for the presynaptic receptors NRXN1-A and NRXN1-B (By similarity). .