The function of FPGT (fucose-1-phosphate guanylyltransferase, Ensembl gene identifier ENSG00000254685) is as follows. Catalyzes the formation of GDP-L-fucose from GTP and L- fucose-1-phosphate (PubMed:9804772). Functions as a salvage pathway to reutilize L-fucose arising from the turnover of glycoproteins and glycolipids (PubMed:9804772). .