Enables DNA-binding transcription factor activity and sequence-specific DNA binding activity. Contributes to transcription cis-regulatory region binding activity. Acts upstream of or within cellular response to leukemia inhibitory factor and positive regulation of transcription, DNA-templated. Located in nucleus. Is expressed in several structures, including alimentary system; branchial arch; early conceptus; genitourinary system; and nervous system. Orthologous to human NFYB (nuclear transcription factor Y subunit beta). [provided by Alliance of Genome Resources, Apr 2022]