The function of ENSG00000148358 (GPR107, G protein-coupled receptor 107) is as follows. Has been proposed to act as a receptor for neuronostatin, a peptide derived from the somatostatin/SST precursor (PubMed:22933024). Involved in blood sugar regulation through the induction of glucagon in response to low glucose (By similarity). {ECO:0000250|UniProtKB:D3ZWZ9, ECO:0000269|PubMed:22933024}. (Microbial infection) Required for intoxication by Pseudomonas aeruginosa exotoxin A and Campylobacter jejuni CDT. May contribute to the retrograde transport of bacterial toxins, including cholera toxin, from the trans-Golgi network to the endoplasmic reticulum. .