What I've heard is that it can and does accept pollen, even by accident. It may be something like Eureka and Lisbon lemons, that are roughly 30-33% nucellar, or possibly it's uniformly zygotic. No one on the Internet seems to have stats about its nucellar status, but there are numerous reports of accidental crosses.
Try it and see what you get. You may end up being the person who resolves the question for the citrus-growing population at large.