Involved in several processes, including negative regulation of intracellular estrogen receptor signaling pathway; positive regulation of mammary stem cell proliferation; and positive regulation of somatic stem cell division. Acts upstream of or within positive regulation of transcription, DNA-templated. Located in nucleus. Is expressed in several structures, including gut; heart; limb bud; mesendoderm; and nervous system. Orthologous to human LBH (LBH regulator of WNT signaling pathway). [provided by Alliance of Genome Resources, Apr 2022]