Binds to extracellular matrix proteins. Binds to pathogen-associated molecular patterns (PAMPs) present on the cell walls of Gram-positive and Gram-negative bacteria and fungi, behaving as a pattern recognition receptor (PRR). Induces bacterial and fungal aggregation and subsequent inhibition of PAMP-induced cytokine release. Does not possess intrinsic bactericidal activity. May play a role in the innate defense and homeostasis of certain epithelial surfaces. Interacts with LGALS1 and laminin. Detected throughout the gastrointestinal and genitourinary tracts, in serosal salivary gland, the exocrine part of pancreas and testis, as well as in a few tubular structures in kidney. Not detected in lung and heart (at protein level). Strongly expressed in testis, kidney and pancreas, with lower levels detected in bone marrow, spleen, lung, liver, colon, stomach and skeletal muscle. Very low levels or no expression detected in thymus, esophagus, jejunum, ileum, duodenum, ovary, uterus, heart, trachea, brain, cerebellum and bladder. At 9.5 dpc, detected in placodes, ectodermal thickenings where organs or structures will develop. Expression levels increase substantially between 9 and 14 dpc. Partially N- and O-glycosylated.