Enables promoter-specific chromatin binding activity. Acts upstream of or within several processes, including ectoderm development; regulation of histone modification; and stem cell proliferation. Located in nucleus. Is expressed in several structures, including blastocyst; early embryo; genitourinary system; gut; and immune system. Orthologous to human L3MBTL2 (L3MBTL histone methyl-lysine binding protein 2). [provided by Alliance of Genome Resources, Apr 2022]