Enables identical protein binding activity and protein C-terminus binding activity. Involved in positive regulation of fatty acid biosynthetic process; positive regulation of ligase activity; and protein polymerization. Acts upstream of or within negative regulation of microtubule depolymerization. Located in cytosol; microtubule cytoskeleton; and nucleus. Is expressed in several structures, including adipose tissue; alimentary system; genitourinary system; limb segment; and nervous system. Orthologous to human MID1IP1 (MID1 interacting protein 1). [provided by Alliance of Genome Resources, Apr 2022]