Enables enzyme binding activity; transcription corepressor activity; and ubiquitin-protein transferase regulator activity. Involved in several processes, including negative regulation of fat cell differentiation; negative regulation of fatty acid biosynthetic process; and regulation of protein modification process. Located in nucleus. Is expressed in several structures, including central nervous system; genitourinary system; heart; and retina. Orthologous to human TRIB3 (tribbles pseudokinase 3). [provided by Alliance of Genome Resources, Apr 2022]