A non-motile cilium where the axoneme has a ring of nine outer microtubule doublets plus two central microtubules (and is therefore called a 9+2 axoneme).
Catalysis of the reaction: 2-(3,4-dihydroxyphenyl)-5-hydroxy-4-oxo-4H-chromen-7-olate luteolin-7-olate + a glucosylated glucose acceptor = isoorientin + a non glucosylated glucose acceptor.