To use the Binance network on MetaMask, but you must first add the RPC network. You can find instructions to do so here.
Once the network is added, you will also need to add any custom tokens that you send to your MetaMask wallet. You can find instructions to do so here. On the Binance Smart Chain RPC network, ETH is also considered a custom token.
You can read further information and instructions on how to use the Binance network with MetaMask here.