No, HUAWEI Mobile Connect is not available for Ubuntu, but there is a replacement. For this operation you will need to issue a few commands. The software is called Mobile Manager GUI.
First open a terminal and type:
sudo add-apt-repository ppa:linuxonly/modem+manager+gui
sudo apt-get update
then to actually install the application use the following command:
sudo apt-get install modemmanager modem-manager-gui
The application looks like this: