Regulator of the Hippo signaling pathway, also known as the Salvador-Warts-Hippo (SWH) pathway. Enhances phosphorylation of LATS1 and YAP1 and negatively regulates cell proliferation and organ growth due to a suppression of the transcriptional activity of YAP1, the major effector of the Hippo pathway. . This is the function of ENSG00000047644 (WWC3, WWC family member 3).