GO terms:

Biological Process:
cell surface receptor signaling pathway [GO:0007166],
G-protein coupled receptor signaling pathway [GO:0007186],
signal transduction [GO:0007165],

Molecular Function:
molecular_function [GO:0003674],
transmembrane signaling receptor activity [GO:0004888],
G-protein coupled receptor activity [GO:0004930],

Cellular Component:
plasma membrane [GO:0005886],
postsynaptic density [GO:0014069],
membrane [GO:0016020],
integral component of membrane [GO:0016021],
glutamatergic synapse [GO:0098978],