Does British English use the term "heel" for the end slice of bread?

I'm Irish, and hence speak Hiberno-English. Here is a photograph of some sliced bread:

The topmost slice of this (that's crust on the end), is called "the heel". Is this meaning for "heel" understood in British English?

Further to what others have said, I (growing up in London and York) was familiar with heel to mean that slice, but it wasn’t common — the usual term for that slice was the crust. (So crust had a dual meaning for us — both the outside of the bread in general, and the slice at either end that consists mostly of crust.)

I wouldn't use it myself, but I have heard it - though in a slightly different sense. I wouldn't understand "the piece of a sliced loaf that happens to be the crust" so much as "an unsliced loaf from which all but a couple of slices have been cut".

Yes, it is understood in British English too; one of the meaning of heel reported by the NOAD and the OED is the following:

a crusty end of a loaf of bread, or the rind of a cheese.

I'm Irish but my parents are English. I'd certainly understand heel, but in our house it's called the dobie end. I have no idea what the origin of that phrase is.