Contributes to sequence-specific DNA binding activity. Involved in negative regulation of CD4-positive, alpha-beta T cell differentiation; negative regulation of transcription by RNA polymerase II; and positive regulation of CD8-positive, alpha-beta T cell differentiation. Acts upstream of or within several processes, including hemopoiesis; osteoblast differentiation; and positive regulation of transcription by RNA polymerase II. Located in nucleus. Is expressed in several structures, including alimentary system; brain; genitourinary system; respiratory system; and sensory organ. Human ortholog(s) of this gene implicated in acute myeloid leukemia. Orthologous to human CBFB (core-binding factor subunit beta). [provided by Alliance of Genome Resources, Apr 2022]