Has both folate hydrolase and N-acetylated-alpha-linked-acidic dipeptidase (NAALADase) activity. Has a preference for tri-alpha-glutamate peptides. In the intestine, required for the uptake of folate. In the brain, modulates excitatory neurotransmission through the hydrolysis of the neuropeptide, N-aceylaspartylglutamate (NAAG), thereby releasing glutamate.; Also exhibits a dipeptidyl-peptidase IV type activity. In vitro, cleaves Gly-Pro-AMC.
Gene References into Functions
Tissues such as prostate and testes exhibit different GCPII expression levels among the species studied (human, rats, swine).PMID:18076021
intestinal GCPII and intestinal and hepatic RFC all exhibit ontogenic changes in the pig that are reflected in postnatal folate statusPMID:19033540
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Subcellular Location
Cell membrane; Single-pass type II membrane protein.
Protein Families
Peptidase M28 family, M28B subfamily
Tissue Specificity
High expression in the duodenum and in the jejunum brush-border membrane. Weak expression in kidney.