Enables cell adhesion molecule binding activity and signaling receptor binding activity. Involved in several processes, including cellular response to histamine; neuron development; and positive regulation of cell population proliferation. Located in nucleus; perinuclear region of cytoplasm; and plasma membrane. Used to study pulmonary hypertension. Biomarker of several diseases, including ischemia (multiple); mesangial proliferative glomerulonephritis; sciatic neuropathy; vascular dementia; and visual epilepsy. Human ortholog(s) of this gene implicated in several diseases, including Jackson-Weiss syndrome; bone disease (multiple); cleft lip; hematologic cancer (multiple); and hypogonadotropic hypogonadism (multiple). Orthologous to human FGFR1 (fibroblast growth factor receptor 1). [provided by Alliance of Genome Resources, Apr 2022]