The function of FAM168A (family with sequence similarity 168 member A, Ensembl gene identifier ENSG00000054965) is as follows. In cancer context, decreases POLB ubiquitination and stabilizes its protein levels (PubMed:25260657). Acts, at least in part, through PI3K/AKT/NFKB signaling pathway and by preventing POLB degradation (PubMed:23251525, PubMed:25260657). Results in protection of cells from induced-DNA damage and apoptosis (PubMed:21334329, PubMed:23251525, PubMed:25260657). {ECO:0000269|PubMed:21334329, ECO:0000269|PubMed:23251525, ECO:0000269|PubMed:25260657}.