I have
listed before some hash functions that also work as stream ciphers; it would appear that the
SHA-3 submission Luffa is a hash function that can output an arbitrarily long hash and be used as a stream cipher.
Also, LUX and MeshHash appear to have some cryptographic weakness and neither made it to round two of the SHA-3 competition; Luffa, however, did make it to round 2.