Galectin-4 is a type of protein that belongs to the galectin family, which is known for its ability to bind to carbohydrates. It plays a role in various biological processes, including cell adhesion, immune response, and inflammation. Galectin-4 is primarily found in the gastrointestinal tract and is involved in maintaining the integrity of the intestinal barrier. Research has shown that Galectin-4 may be linked to certain diseases, including cancer and inflammatory bowel disease. Its expression levels can change in response to different conditions, making it a potential biomarker for diagnosing and monitoring these diseases. Understanding its functions could lead to new therapeutic strategies.