Enables histone deacetylase binding activity; promoter-specific chromatin binding activity; and sequence-specific DNA binding activity. Involved in regulation of NK T cell differentiation; regulation of extrathymic T cell differentiation; and regulation of natural killer cell differentiation. Acts upstream of or within several processes, including animal organ development; artery development; and regulation of B cell activation. Located in cytoplasm and nucleus. Is expressed in several structures, including alimentary system; embryo mesenchyme; reproductive system; retina; and skin. Used to study systemic lupus erythematosus. Orthologous to human PRDM1 (PR/SET domain 1). [provided by Alliance of Genome Resources, Apr 2022]