This also has the horrible name in English: Dog-vomit slime mold.
Sorry about that.

Not edible (why would you want to anyways?).

Interesting fact - this slime mold actually can move about one meter. It was featured in a bad science fiction movie "The Blob" (1958, remade in 1988).

see http://botit.botany.wisc.edu/toms_fungi/june99.html