Acts upstream of or within positive regulation of synapse assembly. Predicted to be located in membrane. Predicted to be integral component of membrane. Predicted to be active in extracellular matrix and extracellular space. Is expressed in central nervous system; dorsal root ganglion; and liver. Orthologous to human LRRC24 (leucine rich repeat containing 24). [provided by Alliance of Genome Resources, Apr 2022]