Predicted to enable signaling receptor binding activity. Involved in negative regulation of exocytosis and regulation of neuron projection development. Is active in glutamatergic synapse. Is integral component of postsynaptic density membrane. Human ortholog(s) of this gene implicated in intellectual disability and non-syndromic X-linked intellectual disability 21. Orthologous to human IL1RAPL1 (interleukin 1 receptor accessory protein like 1). [provided by Alliance of Genome Resources, Apr 2022]