Predicted to enable glutamate receptor binding activity and protein C-terminus binding activity. Involved in neurotransmitter receptor transport, endosome to postsynaptic membrane and vesicle-mediated transport in synapse. Acts upstream of or within Notch signaling pathway; artery smooth muscle contraction; and positive regulation of blood pressure. Is active in glutamatergic synapse. Is expressed in diencephalon lateral wall mantle layer; olfactory cortex mantle layer; and tongue. Orthologous to human GRIP2 (glutamate receptor interacting protein 2). [provided by Alliance of Genome Resources, Apr 2022]