Enables identical protein binding activity and signaling receptor binding activity. Involved in regulation of lipid metabolic process. Acts upstream of or within positive regulation of MAPK cascade; positive regulation of glucose import; and positive regulation of small molecule metabolic process. Located in extracellular space. Part of protein-containing complex. Is expressed in several structures, including alimentary system; brain; genitourinary system; respiratory system; and skeleton. Orthologous to human C1QTNF2 (C1q and TNF related 2). [provided by Alliance of Genome Resources, Apr 2022]