Negative regulator of the Hippo signaling pathway, also known as the Salvador-Warts-Hippo (SWH) pathway (PubMed:24682284). 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 (PubMed:24682284). Along with NF2 can synergistically induce the phosphorylation of LATS1 and LATS2 and function in the regulation of Hippo signaling pathway (PubMed:20159598). Acts as a transcriptional coactivator of ESR1 which plays an essential role in DYNLL1-mediated ESR1 transactivation (PubMed:16684779). Regulates collagen-stimulated activation of the ERK/MAPK cascade (PubMed:18190796). Modulates directional migration of podocytes (PubMed:18596123). Plays a role in cognition and memory performance (PubMed:18672031). Plays an important role in regulating AMPA-selective glutamate receptors (AMPARs) trafficking underlying synaptic plasticity and learning (By similarity).