Downstream regulator in the Wnt/Frizzled-signaling pathway. Associated with cell survival. Attenuates p53-mediated apoptosis in response to DNA damage through activation of AKT kinase. Up-regulates the anti-apoptotic Bcl-X(L) protein. Adheres to skin and melanoma fibroblasts. In vitro binding to skin fibroblasts occurs through the proteoglycans, decorin and biglycan. {ECO:0000269|PubMed:10716946, ECO:0000269|PubMed:11782444}. This is the function of CCN4 (cellular communication network factor 4, ENSG00000104415).