No sir...not recommended...putting all your eggs on one basket is not cool....please use different wallets for btc and on different device...if possible get paper wallet for long term hodl...
Meanwhile is some wallets recommendations for ethereum network!!
Hardware wallets such as Ledger and Trezor are the best and offer the highest security but cost around $70-$150.

Software wallets like Enjin, Trust and ImToken are great free alternatives but with the Private Key being on your smartphone, they come in second place to the hardware wallets.

Browser extensions like MetaMask are good also but being browser based, their attack surface could be considered higher than software wallet apps. Also MEW is most commonly compromised by phishing attacks so please either use with caution or avoid.

As always, have a back up of your private key or seed words. If you lose your crypto wallet and don't have the backup somewhere safe, you lose all your tokens.

If in doubt, ask. We are here to help!