Enables fibroblast growth factor binding activity. Acts upstream of or within positive regulation of cell population proliferation and positive regulation of fibroblast growth factor receptor signaling pathway. Located in cell surface and extracellular region. Is expressed in several structures, including alimentary system; brain; genitourinary system; meninges; and skin. Orthologous to human FGFBP1 (fibroblast growth factor binding protein 1). [provided by Alliance of Genome Resources, Apr 2022]