Predicted to enable fibroblast growth factor binding activity; fibroblast growth factor-activated receptor activity; and heparin binding activity. Acts upstream of or within fibroblast growth factor receptor signaling pathway. Predicted to be located in several cellular components, including Golgi apparatus; endoplasmic reticulum; and transport vesicle. Predicted to be part of receptor complex. Predicted to be integral component of plasma membrane. Predicted to colocalize with cell-cell junction. Human ortholog(s) of this gene implicated in carcinoma (multiple); liver cirrhosis; prostate cancer; and stomach cancer. Orthologous to human FGFR4 (fibroblast growth factor receptor 4). [provided by Alliance of Genome Resources, Apr 2022]