Predicted to enable AMPA glutamate receptor activity and transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential. Predicted to be involved in glutamatergic synaptic transmission and modulation of chemical synaptic transmission. Predicted to act upstream of or within monoatomic ion transmembrane transport. Predicted to be located in postsynaptic membrane. Predicted to be part of AMPA glutamate receptor complex. Predicted to be active in dendritic spine and postsynaptic density membrane. Is expressed in nervous system. Human ortholog(s) of this gene implicated in syndromic X-linked intellectual disability 94. Orthologous to human GRIA3 (glutamate ionotropic receptor AMPA type subunit 3).