Binds fibroblast growth factor and E-selectin (cell-adhesion lectin on endothelial cells mediating the binding of neutrophils) (By similarity). Binds fibroblast growth factor (FGF). May be involved in intracellular FGF trafficking and the regulation of cellular responses to FGFS (PubMed:1448090). Golgi medial cisternae. Localizes to the postsynaptic Golgi apparatus region, also named Golgi outpost, which shapes dendrite morphology by functioning as sites of acentrosomal microtubule nucleation. Fucosylation is essential for binding to E-selectin. N-glycosylated. Contains sialic acid residues.