The function of INSC (INSC spindle orientation adaptor protein, Ensembl gene identifier ENSG00000188487) is as follows. May function as an adapter linking the Par3 complex to the GPSM1/GPSM2 complex (PubMed:16458856). Involved in spindle orientation during mitosis. May regulate cell proliferation and differentiation in the developing nervous system. May play a role in the asymmetric division of fibroblasts and participate in the process of stratification of the squamous epithelium (By similarity). .