Neu5Ac(alpha2-6)Gal/GalNAc specific agglutinin. Behaves as a type-2 ribosome-inactivating protein. Strongly inhibits mammalian but not plant ribosomes. The A chain is responsible for inhibiting protein synthesis through the catalytic inactivation of 60S ribosomal subunits by removing adenine from position 4,324 of 28S rRNA (Probable). The B chain binds to cell receptors and probably facilitates the entry into the cell of the A chain; B chains are also responsible for cell agglutination (lectin activity) (Probable). Involved in plant defense against insects