Type II acute-phase protein (APP) involved in inflammatory responses to trauma. May also play a role in liver development or regeneration. Interacts (via C-terminus) with DNAJC1 (via SANT 2 domain). Liver specific. Levels increase significantly after cardiogenic shock. Specifically induced by the cytokine IL6 in hepatocytes. Appears to be both N- and O-glycosylated. Cleaved by plasma kallikrein to yield 55- and 25-kDa fragments. Belongs to the ITIH family. Sequencing errors.