[Ethereum] Can Metamask read Ethereum Name Service (ENS) addresses

Yes a contract can have an ENS address.

A well known example is the Ethereum Foundation donation contract, which you can look up with ethereumfoundation.eth. You can see it at: https://etherscan.io/enslookup?q=ethereumfoundation.eth

The ENS Ethereum Address for this name is 0xfb6916095ca1df60bb79ce92ce3ea74c37c5d359 Also accessible at ethereumfoundation.eth

Cindercloud has a rest-endpoint which is specifically designed for this.

Documentation on this endpoint can be found here.