Inhibitor-type lectin that may regulate the correct polymerization and activation of BGLU23/PYK10 upon tissue damage. Component of the PYK10 complex, at least composed of PYK10/BGLU23, BGLU21, BGLU22, JAL22, JAL23, PBP1/JAL30, PBP2/JAL31, JAL32, JAL33, JAL34, JAL35, GLL22 and GLL23. Larger PYK10 complexes. Belongs to the jacalin lectin family.