Enables corticotrophin-releasing factor receptor activity and hormone activity. Acts upstream of or within G protein-coupled receptor signaling pathway; negative regulation of angiogenesis; and regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway. Located in Golgi apparatus; cell surface; and endoplasmic reticulum. Is expressed in several structures, including brain; genitourinary system; gut; hemolymphoid system gland; and integumental system. Human ortholog(s) of this gene implicated in asthma. Orthologous to human CRHR2 (corticotropin releasing hormone receptor 2). [provided by Alliance of Genome Resources, Apr 2022]