Primarily it is used to communicate with the Ethereum blockchain, but you can also connect MetaMask to the Binance Smart Chain network , which will enable you to make BNB transactions through MetaMask. Apart from this transaction, BNB can also be swapped for other tokens on decentralized exchanges.
Read moreHow do I transfer coins from Binance to MetaMask?
Send the funds from the Binance chain extension wallet to MetaMask
Read moreHow do I transfer BNB Binance to MetaMask?
Send BNB Coin to Binance Smart Chain on MetaMask
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