Enables ionotropic glutamate receptor binding activity. Involved in several processes, including interleukin-1-mediated signaling pathway; positive regulation of neuron migration; and response to odorant. Located in several cellular components, including axon; cell surface; and postsynaptic density. Part of protein-containing complex. Biomarker of pulpitis. Human ortholog(s) of this gene implicated in systemic scleroderma and type 1 diabetes mellitus. Orthologous to human IL1R1 (interleukin 1 receptor type 1). [provided by Alliance of Genome Resources, Apr 2022]