The function of ZKSCAN3 (zinc finger with KRAB and SCAN domains 3, Ensembl gene identifier ENSG00000189298) is as follows. Transcriptional factor that binds to the consensus sequence 5'-[GT][AG][AGT]GGGG-3' and acts as a repressor of autophagy. Specifically represses expression of genes involved in autophagy and lysosome biogenesis/function such as MAP1LC3B, ULK1 or WIPI2. Associates with chromatin at the ITGB4 and VEGF promoters. Also acts as a transcription activator and promotes cancer cell progression and/or migration in various tumors and myelomas. {ECO:0000269|PubMed:18940803, ECO:0000269|PubMed:21057542, ECO:0000269|PubMed:22531714, ECO:0000269|PubMed:23434374}.