Probable adipokine. Activates AMPK, AKT, and p44/42 MAPK signaling pathways. Interacts with CTRP9A and ADIPOQ. Forms heterotrimers and heterooligomeric complexes with CTRP9A. Heteromeric complex formation with CTRP9A or ADIPOQ is required for secretion, otherwise, it is retained in the endoplasmic reticulum. Expressed at low levels. Not expressed in adipose tissues.