Enables protein kinase binding activity. Acts upstream of or within peptidyl-tyrosine phosphorylation; response to cytokine; and response to lipopolysaccharide. Located in external side of plasma membrane. Is expressed in several structures, including brain ventricular layer; genitourinary system; incisor; olfactory epithelium; and submandibular gland. Orthologous to human IL12RB2 (interleukin 12 receptor subunit beta 2). [provided by Alliance of Genome Resources, Apr 2022]