N-Acetylgalactosaminyltransferase 12 (GALNT12) belongs to the uridine diphosphate N-acetylgalactosamine gene family and is involved in the biological processes of many diseases, such as tumor progression. N-Acetylgalactosaminyltransferase 12 is a potential biomarker for fibrosarcoma, and its high expression level is closely related to the yes1-associated transcriptional regulator (YAP1) signaling pathway.