In 1871, Biankini became the editor of the Zadar-based Narodni list at urging of Mihovil Pavlinović, the leader of the Croatian National Revival in Dalmatia.

In the Imperial Council, Biankini was a part of the Yugoslav Club which adopted the May Declaration advocating a reform of Austria-Hungary allowing its South Slavic population to unite in a single polity within the empire in 1917.

[1] Following establishment of the Kingdom of Serbs, Croats and Slovenes in 1918, Biankini was appointed a member of the Temporary National Representation, the provisional legislative body of the new state.

In the period after the World War I, Biankini joined the Democratic Party and he was appointed the deputy prime minister in the government of Ljubomir Davidović.

[1] His Brother Ante was a member of the Yugoslav Committee, an ad-hoc group of politicians and activists advocating unification of the South Slavs living in Austria-Hungary with the Kingdom of Serbia.