I could not find in the version electrum for android how to sign a transaction in the multisignature wallet.
What's the setup of the multisig?
2-of 2?
Please, tell me the wallet with the support sign a transaction for the android with support bech32 segwit addresses.
Only Electrum so far supports Bech32 addresses so no other one will work.
Will I be able to sign a transaction from the electrum desktop version bitcoin wallet in other android wallet?
It depends on how your wallet is set up.
If it's 2 of 2 or 2 of 3, and one copayer is your desktop wallet, and the other is your Electrum for Android, then you can generate a QR code from your desktop wallet and scan the QR code from the mobile Electrum wallet.