Functions as a fructose transporter that has only low activity with other monosaccharides (PubMed:7980458). Can mediate the uptake of deoxyglucose, but with low efficiency (By similarity). Essential for fructose uptake in the small intestine. Plays a role in the regulation of salt uptake and blood pressure in response to dietary fructose. Required for the development of high blood pressure in response to high dietary fructose intake (By similarity). D-fructose(out) = D-fructose(in) Localized on the apical membrane of jejunum villi, but also on lateral plasma membranes of the villi. Transport to the cell membrane is dependent on RAB11A. Detected in jejunum. Detected at the intestinal brush-border membrane (at protein level). Detected in duodenum, jejunum and kidney. Belongs to the major facilitator superfamily. Sugar transporter (TC 2.A.1.1) family. Glucose transporter subfamily.