It is probably not an ideal solution to use a glulam app to calculate a suitable steel dimension. Such a comparison is always fraught with errors. Steel and wood have different properties and come in various strength classes. If one is not knowledgeable in building construction, they can easily be misled by a glulam app. The choices will not be optimal.
Assuming that the products of the modulus of elasticity and the moment of inertia should be comparable, I quickly estimate that a glulam beam with dimensions 90x315 mm should correspond to a HEA 160 when assessing deflection. However, I wouldn't trust that information without consulting a structural engineer who can access all the data.