Ionotropic glutamate receptor that capabilities for a cation permeable ligand-gated ion channel, gated by L-glutamate along with the glutamatergic agonist kainic acid. L-glutamate acts as an excitatory neurotransmitter at lots of synapses within the central anxious program. Binding of the excitatory neurotransmitter L-glutamate induces a conformati